Description of problem:

  The 1.9.0-2 version of the rubygem-kramdown RPM that was pushed to
  EPEL-7 yesterday (https://bugzilla.redhat.com/show_bug.cgi?id=1858415)
  is not compatible with the version of Ruby (2.0.0) in RHEL-7.
  Specifically, this line in the patch:

    define(:forbidden_inline_options, Object, %w[template], <<~EOF) do |val|

  uses a syntax (<<~) that did not exist in Ruby 2.0.0, which is the
  version shipped in RHEL-7.  (If I read it correctly, that syntax
  appeared in Ruby 2.3.0.)



Version-Release number of selected component (if applicable):

  1.9.0-2.el7



Steps to Reproduce:

  1. Install kramdown gem from EPEL:
       # yum install rubygem-kramdown-1.9.0-2.el7
  2. Try to load kramdown:
       $ irb
       irb(main):001:0> require 'kramdown'

  This causes a syntax error to be raised:

     SyntaxError: /usr/share/gems/gems/kramdown-1.9.0/lib/kramdown/options.rb:596: syntax error, unexpected <<, expecting ')'
     ...tions, Object, %w[template], <<~EOF) do |val|
     ...                               ^



Additional info:

  The quick fix is to just change "<<~" to "<<" in the patch.  Bonus
  is to also dedent the documentation text so it starts in column 0.


Workaround:

  For people who have applications failing due to the broken version
  the quick-and-dirty workaround is to edit the file
      /usr/share/gems/gems/kramdown-1.9.0/lib/kramdown/options.rb
  and change "<<~" to "<<" on line 596.